Tire-remover.



No. 881,128. PATENTED SBPTQ18, 1906. J. WILLSON & A. TRAEGBR.

TIRE RBMOVER.

APPLICATION FILED JAN.10,1905.

wi/bnemo UNrrEn STATES PATENT OFFICE.

TlRE-REMOVER.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed January 10,1905. Serial No. 240,522.

To all whom it may concern:

Be it known that we, JAMES WrLLsoN and AUGUSTUS TRAEGER, citizens of theUnited States, residing at Porterville, in the county of Tulare andState of California, have invented a new and useful Tire-Remover, ofwhich the following is a specification.

Our invention relates to tire-removers of the type employing a plungerhaving a rack and an operating-lever having teeth adapted to engage therack to work the plunger.

The object of the present invention is more particularly to provide in atire-remover of the type set forth a base having an abutment and animproved shiftable pivotal connection between the base and theoperating-lever, whereby the operating-lever can be shifted out ofengagement with the rack of the plunger and the plunger quicklypositioned against the folly of the wheel from which the tire is to beremoved and the operating-handle thereupon reengaged with the rack andused to apply the pressure to force the felly from the tire.

Another object of our invention is the provision of a device of theclass described which may be used on wheels of any size or irregularityof formation and employed to remove the tire without injury to thefelly, while a further object is generally the provision of atire-removerof simple, strong, and durable construction and few partsand one which will not be likely to get out of order.-

' The detailed construction of the invention and its manner of operationare set forth fully hereinafter, while the novel features are recited inthe appended claims.

In the accompanying drawings, Figure 1 is a perspective view of thecomplete invention, showing the manner of use thereof, certain partsbeing broken away; Fig. 2, a detail of one of the uprights of the base,showing the improved form of trunnion bearing or slot which we employ;Fig. 3, a detail of the operating-lever where a fixed trunnion issecured; and Fig. 4, a detail of a modification showing how the improvedslot may beformed in the operating-lever when the trunnion is secured tothe base-frame.

The base-frame 1 is of a single piece of cast metal, having an aperture2 for securing it to the floor by a suitable lag-screw or otherfastening. Rising from the base is an anvil 3 of a height equal thethickness of the heaviest tire in use and which is provided with theoffsets or projections 4. If the tire is of less width than the heightof the anvil 3, a strip of metal will be placed on the base at 5 underthe tire, so as to elevate it to the required height. Formed integralwith the base and rising therefrom are the side pieces or standards 6,having the substantially L-shaped slots 7, whose substantiallyhorizontal portions point in the opposite direction from the anvil 3 andwhose vertical portions lead out through the top edges of the standards6'. It will be understood that while these slots are of general L shapeit is not necessary that they exactly conform to that description, be-

cause they might be made substantially on a curve or of other formprovided they are of such formation that they comprise two parts at moreor less of an angle to each other. Slidable back and forth between thestandards or uprights 6 is the plunger 8, which is supported by theraised portion 9 of the base at the proper height to just clear theprojections 4 4 and the top of the anvil 3, and this plunger is providedwith a rack 10 on its upper edge. The operating-lever is shown at 11,said lever having a bifurcated lower end 12, thus forming two teeth 13and 14, adapted to suitably mesh with the teeth of rack 10. Securedfirmly to the lever 11 is the pivot or trunnion 15, whose-portionsproject on opposite sides of said lever and are received in the slots 7.The trunnions are entered in the upright portions of the slot 7, whichpermit the lever to be raised or lowered vertically, as desired, whilewhen said trunnions pass into the substantially horizontal portions ofsaid slots 7 there is then provided an abutment against which saidtrunnions fulcrum to enable the plunger to be worked by operating thelever, as the teeth 13 and 14 are then in engagement with the rack 10.

In the modification shown in Fig. 4 a single opening 16 of inverted Lshape passes through the operating-lever 11 and the trunnion 15 isrigidly secured to the standards 6 and extends from one to the other,said trunnion passing through the opening 16.

The principle of operation is the same, as the difficulty, and thisremains true on succesconstruction enables the operating-lever to beraised or lowered and fulcrumed and made to operate the plunger.

In using the tire-remover the wheel from which the tire is to bedisplaced is rested on the part 5 of the base and against theprojections 4, the plunger 8 having been retreated a suitable distanceto admit the wheel. The operating-lever 11 is then lifted verticallyuntil its teeth 13 and 14 are clear of the rack 10, and the plunger isquickly moved forward until it rests against the felly of the wheel, andthe lever is thereupon dropped and operated to forcibly remove the tire.On account of the peculiar shape of the slots 7 or slot 16 the trunnionsor trunnion prevent the lever rising vertically, so that it cannotbecome disengaged from the rack 10. After the plunger has been advancedas far as one operation of the lever will permit it to move the lever isthen returned to an upright position and the wheel turned to bringanother point of the felly in front of the plunger, after which. theoperation is repeated, and thus by successive operations the wheelis-entirely gone around. The lever can then be lifted to advance theplunger a little farther and the successive operations of applyingpressure to different points of the felly-repeated until the tire iscompletely removed.

The main advantage obtained by our in vention over tire-removersheretofore known to the art is the use of the improved loosefulcrumconnection for the lever, which permits a rapid initial adjustment ofthe plunger to suit the width of the felly, after which the lever isengaged with the rack and stands in an upright position, so that theoperator can eXert the greatest pressure with the least sive operationson a given wheel after the felly has been forced all around to a certainextent, whereas with other devices known to the art the lever graduallydeparts from its upright or most convenient position and makes theoperation of the device more awkward and less powerful with a given acton the part of the operator as the operation proceeds, or with priordevices it is necessary to entirely shift the operating-lever and obtaina new fulcrum.

Having thus described our invention, what I we claim as new, and desireto secure by Letters Patent, is-

1. In a tire-remover, the combination with a base having an abutment forthe wheel, of a plunger slidably mounted on the base for removing thetire, and a lever engaged with but not connected to the plunger foroperating the plunger, said lever being disengageable from the plungerand having a shiftable pivotal connection with the base permitting saidlever to be shifted into and out of operative engagement with theplunger.

2. In a tire-remover, the combination with a base having an abutment forthe wheel, of a plunger slidably mounted 011 the base for removing thetire, and a lever engaged with but not connected to the plunger andhaving a shiftable pivotal connection with the base comprising a slothaving two parts arranged out of a straight line in relation to eachother, and a pivot movable in said slot, whereby the lever can beshifted out of operative engagement with the plunger and is alsoprevented from disengagement from the plunger during the operation ofthe device.

3. In a tire-remover, the combination with a base having an abutment forthe wheel, of a plunger slidably mounted on the base for removing thetire, said plunger having a rack, and a lever engaged with but notconnected to the plunger and having a tooth to detachably engage therack and also having a loose pivotal connection with the base comprisinga slot having two parts which are out of a straight line in relation toeach other, one part of the slot being substantially parallel to theplunger and the other part being substantially at'right angles to theplunger, and a pivot received in the slot, whereby the operating-levercan be shifted out of engagement with the rack but is held in engagementtherewith during the operation of the device.

In witness whereof we have hereunto set our hands and seals, in thepresence of two subscribing witnesses, at Porterville, in the county ofTulare, State of California, this 5th day of December, A. D. 1904.

JAMES WILLSON. [L. s;] AUGUSTUS TRAEGER. [L. s.]

